
16
P-120/P-120S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN
NAME
I/O
FUNCTION
PIN
NAME
I/O
FUNCTION
NO.
NO.
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
O
Key block (open drein)
First make contact
Second make contact
Crystal osc. input (4 MHz)
Crystal osc. output (4 MHz)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
O
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
Ground
Power supply
Serial data
Acknowledge/mode select
Clock for serial data
Initial clear
Test mode
(L,L: normal mode, others: test)
Inhibit of serial clock
Key block (open drein)
Ground
Power supply
BK5
BK4
BK3
BK2
BK1
BK0
MK15
MK14
MK13
MK12
MK11
MK10
MK05
MK04
MK03
MK02
MK01
MK00
XIN
XOUT
GND
VDD
SO
ACK
XCK
/IC
TST1
TST2
XCKINH
BK14
BK13
BK12
BK11
BK10
BK9
BK8
BK7
BK6
GND
VDD
●
YMZ702-D (XR632A00) KSN2 (Key Scanner)
■
IC BLOCK DIAGRAM
(IC ブロック図)
1
2
3
4
5
6
7
A
A
Select
Enable
Output
Output
B
B
C
C
G2A
G2A
G2B
G2B
G1
G1
Y7
Y7
Y5
Y4
Y3
Y2
Y1
Y0
Y6
16
15
14
13
12
11
10
Vcc
YO
Y1
Y2
Y3
Y4
Y5
8
GND
9
Y6
TC74HC138AFEL
(XW762A00)
3 to 8 Demultiplexer
I1
I2
I3
I4
I5
I6
I7
I8
GND
1
18
2
17
3
16
4
15
5
14
6
13
7
12
8
11
9
10
O1
O2
O3
O4
O5
O6
O7
O8
COMMON
TD62083F-TP1
(
XN153A00
)
8ch Driver Array
VDD
OUT
1
2
3
4
5
NC
IN
VSS
SC7SU04FEL(XI348A00)
lnverter Gate
TC7S04F(XM182A00)
Vcc
Y
1
2
3
4
5
IN B
IN A
GND
TC7S00F(XG150A00)
NAND
PCM69AU-3/TE2 (XV297A00)
DIGITAL-TO-ANALOG CONVERTER
1
2
3
4
5
6
7
19
18
17
16
15
14
20
LV
COM
NC
LI
OUT
SRVCAP
REFCAP
RI
OUT
DCOM
MC2
RDATA
BTCK
SYSCK
WDCK
LDATA
8
NC
MC3
9
12
10
11
13
+V
A
RV
COM
MC1
ACOM
+V
D
TC7S32F
(XM588A00)
OR
Vcc
OUT
1
2
3
5
4
IN A
IN B
Vss